:root {
    /* Colors - Dark Gaming Theme */
    --c-bg-main: #0f1218;
    --c-bg-surface: #1a1f29;
    --c-bg-elevated: #252b39;
    
    --c-primary: #f50057;
    --c-primary-hover: #ff4081;
    --c-secondary: #00e5ff;
    --c-accent-gold: #ffcf33;
    --c-success: #00c853;
    
    --c-text-primary: #ffffff;
    --c-text-secondary: #94a3b8;
    --c-text-tertiary: #64748b;

    --c-border: rgba(255, 255, 255, 0.1);
    --c-overlay: rgba(0, 0, 0, 0.7);

    /* Gradients */
    --g-brand: linear-gradient(135deg, #f50057 0%, #7c4dff 100%);
    --g-surface: linear-gradient(180deg, rgba(37, 43, 57, 0.5) 0%, rgba(26, 31, 41, 1) 100%);
    --g-skeleton: linear-gradient(90deg, #1a1f29 0%, #252b39 50%, #1a1f29 100%);

    /* Typography */
    --font-family: 'Inter', system-ui, -apple-system, sans-serif;
    --fs-xs: 0.75rem;
    --fs-s: 0.875rem;
    --fs-m: 1rem;
    --fs-l: 1.25rem;
    --fs-xl: 1.5rem;
    --fs-2xl: clamp(1.5rem, 4vw, 2.5rem);

    /* Spacing */
    --sp-xs: 0.25rem;
    --sp-s: 0.5rem;
    --sp-m: 1rem;
    --sp-l: 1.5rem;
    --sp-xl: 2rem;

    /* Radius & Effects */
    --radius-s: 0.5rem;
    --radius-m: 1rem;
    --radius-l: 1.5rem;
    --radius-full: 9999px;

    --shadow-s: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 15px rgba(245, 0, 87, 0.3);
    
    --trans-fast: 0.2s ease;
    --trans-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Reset & Base --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 100%;
}

body {
    font-family: var(--font-family);
    background-color: var(--c-bg-main);
    color: var(--c-text-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--trans-fast);
}

button {
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
}

ul {
    list-style: none;
}

svg {
    display: block;
}

/* --- Layout --- */
#page-container {
    width: 100%;
    max-width: 1440px;
    margin: 0 auto;
    padding-bottom: var(--sp-xl);
}

.layout__placeholder-header {
    height: 80px; /* Adjust based on header height */
}

/* --- Header --- */
.ui-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background: rgba(15, 18, 24, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--c-border);
    padding: var(--sp-s) 0;
    transition: transform var(--trans-smooth);
}

.ui-header__wrapper {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 var(--sp-m);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
}

.ui-header__container {
    display: flex;
    align-items: center;
    gap: var(--sp-m);
}

.ui-logo {
    display: block;
    width: 120px;
    height: 40px;
    background: var(--g-brand); /* Placeholder for logo */
    border-radius: var(--radius-s);
    position: relative;
    overflow: hidden;
}

.ui-logo::after {
    content: 'CASINO';
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    letter-spacing: 2px;
    color: white;
}

.ui-header__menu {
    display: flex;
    align-items: center;
    gap: var(--sp-m);
}

.ui-header__item a {
    font-weight: 600;
    font-size: var(--fs-s);
}

.ui-header__item a:not(.ui-button-base):hover {
    color: var(--c-primary);
}

/* --- Side Menu (Off-canvas) --- */
.ui-side-menu {
    position: fixed;
    inset: 0;
    z-index: 200;
    pointer-events: none;
}

.ui-side-menu_opened {
    pointer-events: auto;
}

.ui-side-menu__overlay {
    position: absolute;
    inset: 0;
    background: var(--c-overlay);
    opacity: 0;
    transition: opacity var(--trans-smooth);
}

.ui-side-menu_opened .ui-side-menu__overlay {
    opacity: 1;
}

.ui-side-menu__aside {
    position: absolute;
    top: 0;
    right: 0;
    width: 320px;
    height: 100%;
    background: var(--c-bg-surface);
    transform: translateX(100%);
    transition: transform var(--trans-smooth);
    display: flex;
    flex-direction: column;
    border-left: 1px solid var(--c-border);
    box-shadow: -10px 0 30px rgba(0,0,0,0.5);
}

.ui-side-menu_opened .ui-side-menu__aside {
    transform: translateX(0);
}

.ui-side-menu__content {
    flex: 1;
    overflow-y: auto;
    padding: var(--sp-l);
}

.ui-side-menu__close {
    display: flex;
    justify-content: flex-end;
    margin-bottom: var(--sp-l);
}

.side-menu-sections {
    display: flex;
    flex-direction: column;
    gap: var(--sp-s);
}

.side-menu-sections__link {
    display: block;
    padding: var(--sp-m);
    border-radius: var(--radius-s);
    font-weight: 500;
    transition: all var(--trans-fast);
}

.side-menu-sections__link:hover {
    background: var(--c-bg-elevated);
    color: var(--c-primary);
    transform: translateX(5px);
}

.ui-side-menu__bottom {
    padding: var(--sp-l);
    border-top: 1px solid var(--c-border);
    display: flex;
    gap: var(--sp-m);
    align-items: center;
}

/* --- Head Tabs Navigation --- */
.head-tabs-menu {
    position: sticky;
    top: 80px; /* Below header */
    z-index: 90;
    background: var(--c-bg-main);
    padding: var(--sp-s) 0;
    border-bottom: 1px solid var(--c-border);
}

.ui-head-tabs {
    display: flex;
    gap: var(--sp-l);
    overflow-x: auto;
    padding: 0 var(--sp-m);
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE */
}

.ui-head-tabs::-webkit-scrollbar {
    display: none;
}

.ui-head-tabs__item {
    white-space: nowrap;
    padding: var(--sp-s) 0;
    position: relative;
    color: var(--c-text-secondary);
}

.ui-head-tabs__item:hover,
.ui-head-tabs__item.active {
    color: var(--c-text-primary);
}

.ui-head-tabs__item:hover::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--c-primary);
    border-radius: var(--radius-full);
}

/* --- Main Banner Slider --- */
.home-page {
    padding-top: var(--sp-m);
}

.banner-slider {
    width: 100%;
    padding: 0 var(--sp-m);
    margin-bottom: var(--sp-xl);
}

.ui-main-banner {
    width: 100%;
    min-height: 300px;
    border-radius: var(--radius-m);
    overflow: hidden;
    background: var(--c-bg-surface);
    position: relative;
}

.ui-main-banner_color_gradient-2 {
    background: rgb(20,20,20);
    background: linear-gradient(90deg, rgba(20,20,20,1) 0%, rgba(37,29,51,1) 50%, rgba(68,14,24,1) 100%);
}

.ui-main-banner__inner {
    display: flex;
    height: 100%;
    align-items: center;
    padding: var(--sp-xl);
}

.ui-main-banner__inner-description {
    flex: 1;
    z-index: 2;
    max-width: 600px;
}

.ui-main-banner__title p {
    font-size: var(--fs-2xl);
    line-height: 1.1;
    margin-bottom: var(--sp-l);
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

.ui-main-banner__inner-media {
    flex: 1;
    height: 100%;
    /* Placeholder for banner image */
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="rgba(255,255,255,0.05)"/></svg>') no-repeat center right;
    background-size: contain;
}

/* --- Games Menu Grid --- */
.page-layout {
    padding: 0 var(--sp-m);
}

.games-menu {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: var(--sp-m);
    margin-bottom: var(--sp-xl);
}

.games-menu__item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--c-bg-surface);
    padding: var(--sp-m);
    border-radius: var(--radius-m);
    transition: all var(--trans-fast);
    border: 1px solid transparent;
}

.games-menu__item:hover {
    background: var(--c-bg-elevated);
    border-color: var(--c-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.games-menu__icon {
    width: 40px;
    height: 40px;
    margin-bottom: var(--sp-s);
    color: var(--c-secondary);
}

.games-menu__item:hover .games-menu__icon {
    color: var(--c-primary);
    transform: scale(1.1);
    transition: transform var(--trans-fast);
}

.games-menu__item-title {
    font-size: var(--fs-s);
    font-weight: 500;
    text-align: center;
}

/* --- Sliders (Games) --- */
.home-page-games-slider {
    margin-bottom: var(--sp-xl);
    position: relative;
}

.games-slider-title {
    display: flex;
    align-items: center;
    gap: var(--sp-s);
    margin-bottom: var(--sp-m);
    color: var(--c-text-primary);
}

.games-slider-title__el svg {
    color: var(--c-accent-gold);
}

.swiper-wrapper {
    display: flex;
    gap: var(--sp-m);
    /* For horizontal scrolling if JS fails or simple CSS fallback */
    overflow-x: auto; 
    padding-bottom: var(--sp-m);
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
}
.swiper-wrapper::-webkit-scrollbar { display: none; }

.games-slider-item {
    flex: 0 0 auto;
    width: 160px; /* Mobile width */
    scroll-snap-align: start;
}

/* Game Card Styles */
.ui-card {
    position: relative;
    border-radius: var(--radius-m);
    overflow: hidden;
    background: var(--c-bg-card);
    transition: transform var(--trans-fast), box-shadow var(--trans-fast);
    aspect-ratio: 3/4;
}

.ui-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-s), 0 0 0 2px var(--c-primary);
}

.ui-card-body, .ui-card-media, .ui-card-media__image {
    width: 100%;
    height: 100%;
}

.ui-image-loader-wrapper {
    width: 100%;
    height: 100%;
    background: var(--c-bg-elevated);
    background-image: var(--g-skeleton);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite linear;
}

/* Overlay & Chips */
.ui-card-media__wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.ui-card-media-overlay {
    padding: var(--sp-s);
}

.ui-chip {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    border-radius: var(--radius-s);
    background: var(--c-success);
    color: white;
    font-weight: 700;
    font-size: var(--fs-xs);
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

/* Slider Buttons */
.navigation-element {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    background: var(--c-bg-surface);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    box-shadow: var(--shadow-s);
    transition: background var(--trans-fast);
}

.navigation-element:hover {
    background: var(--c-primary);
    color: white;
}

.slider-btn-prev { left: -20px; }
.slider-btn-next { right: -20px; transform: translateY(-50%) rotate(180deg); }

/* --- Buttons --- */
.ui-button-base {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.6em 1.2em;
    border-radius: var(--radius-s);
    font-weight: 600;
    transition: all var(--trans-fast);
    position: relative;
    overflow: hidden;
    font-size: var(--fs-m);
}

/* Fancy Gradient Button */
.ui-button_kind_fancy {
    background: var(--g-brand);
    color: white;
    box-shadow: 0 4px 10px rgba(245, 0, 87, 0.4);
}

.ui-button_kind_fancy:hover {
    filter: brightness(1.2);
    box-shadow: 0 6px 15px rgba(245, 0, 87, 0.6);
    transform: translateY(-1px);
}

.ui-button_kind_fancy:active {
    transform: translateY(1px);
}

/* Primary Button */
.ui-button_kind_primary {
    background-color: var(--c-bg-elevated);
    color: var(--c-text-primary);
    border: 1px solid var(--c-border);
}

.ui-button_kind_primary:hover {
    background-color: var(--c-bg-surface);
    border-color: var(--c-primary);
}

/* Link Button */
.ui-button_kind_link {
    background: transparent;
    padding: var(--sp-s);
    color: var(--c-text-secondary);
}

.ui-button_kind_link:hover {
    color: var(--c-text-primary);
    background: rgba(255,255,255,0.05);
}

/* Button Sizes */
.ui-button_size_s { font-size: var(--fs-s); }
.ui-button_size_m { font-size: var(--fs-m); }
.ui-button_size_l { font-size: var(--fs-l); padding: 0.8em 1.5em; }

/* Icon Button */
.ui-button_icon {
    padding: var(--sp-s);
    border-radius: 50%;
    width: 48px;
    height: 48px;
}

/* --- Typography Utilities --- */
.ui-typography_transforms_uppercase { text-transform: uppercase; }
.ui-typography_strong { font-weight: 700; }
.ui-typography_size_m { font-size: var(--fs-m); }
.ui-typography_size_xs { font-size: var(--fs-xs); }

/* --- Animations --- */
@keyframes skeleton-loading {
    0% { background-position: 100% 50%; }
    100% { background-position: 0 50%; }
}

/* --- Responsive Media Queries --- */
@media (max-width: 1024px) {
    .games-menu {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 768px) {
    .ui-header__wrapper {
        padding: 0 var(--sp-s);
    }

    .ui-logo {
        width: 100px;
    }

    /* Hide text menu items in header on mobile, keep buttons */
    .ui-header__menu .ui-header__item:first-child {
        display: none;
    }

    .banner-slider {
        padding: 0 var(--sp-s);
    }

    .ui-main-banner {
        min-height: 200px;
    }

    .ui-main-banner__inner {
        padding: var(--sp-m);
        flex-direction: column;
        justify-content: center;
        text-align: center;
    }

    .ui-main-banner__title p {
        font-size: 1.5rem;
    }
    
    .ui-main-banner__inner-media {
        display: none; /* Hide image on mobile to save space */
    }

    .games-menu {
        grid-template-columns: repeat(3, 1fr); /* 3 cols on mobile */
        gap: var(--sp-s);
    }
    
    .games-menu__item {
        padding: var(--sp-s);
    }

    .games-menu__icon {
        width: 30px;
        height: 30px;
    }

    .games-slider-item {
        width: 130px;
    }

    .navigation-element {
        display: none; /* Hide slider arrows on mobile, use touch */
    }
}

@media (max-width: 480px) {
    .games-menu {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .ui-side-menu__aside {
        width: 85%;
    }
}